When taking an axial radiograph of the heel bone, the patient is asked to sit or lie on the examination bed. 2. The patient is asked to hyperextend the ankle joint. In this case, the patient can use his or her own hands, or ask someone else to help, to pull the forefoot or toe, and then make the ankle joint hyperextend. In order to prevent the above mentioned parts from affecting the filming, a bandage or rubber band can be used to hold the forefoot and make the ankle joint hyperextend. 3. 4, for some patients who are in coma, the ankle joint is fixed by external fixation, at this time, the ankle joint can not be moved, then you can ask the assistant to raise the patient’s lower leg, so that it has a slight angle tilt with the examination bed, and then increase the tilt angle of the ball head to complete the shooting of the axis of the heel bone.